Pizza oven



FIG. 1 is a top, front perspective view of a pizza oven showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is an isometric view thereof.

The details shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a pizza oven, as shown and described. 